Howling noise after 40mph and during decel...

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Johnny Raincloud

You can't fix stupid.....
Jul 16, 2009
1,392
0
36
Canyon Lake, CA
#1
Like the title states...

In the last 3 days, my truck has been making this light pitched howling noise the second I hit 40mph and through about 60mph. It also makes a weird puffing sound under load while warming up and driving up hill.

Once I get off the freeway or start to decelerate from 50mph down to about 35mph, i hear the same howling noise.

It’s an 05 Ranger STX with 120,000 on it. 3.0 auto, stock 3.73 running on 33x12.5x15 and has been for 10 years +!

Front wheel bearings were changed last year along with rotors and all supporting parts up front.

Could this be the end of the rear end?

Thanks in advance guys!
 

FasterNU

Mega Member
Jun 28, 2006
6,480
115
63
42
San Diego
#3
Sounds like rear end from here (ring and pinion). I get a nasty howl after the gears wear out when I "coast"... which is really a de-acceleration with the driveline engaged.

If you truly coast... AKA, put it in neutral, the sound will drop dramatically.

BroDaddy truck is experiencing this right now. We cook gears a lot faster with the ratios we run though (He is 6.0. I am 5.67)
 

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